The bane of the dean's existence. The parent who hovers and flaps his wings while the kid lives in his shadow. Particularly prevalent at high-priced colleges, where parents feel obliged (or entitled) to intervene on issues down to the candlepower of the lightbulbs.

Yes, helicopter parent, your intentions are good, but that rotor of yours is causing a din.--Felix Carroll, Albany Times Union, January 27, 2005

This phrase is worth noting precisely because it does not belong in this dictionary: it makes sense in a moral universe that has utterly vanished. The last "cad and bounder" died, perhaps, about 1947 (see London Daily Telegraph obituaries for further evidence).

Although they are appropriately linked, the precise meanings differ. A "cad" is one who does harm to a woman's honor or sense of self-worth as, for example, by taking her for a garden walk when he has no intention of marrying her. A "bounder" is a presumptious upstart, seemingly ignorant of, but perhaps merely indifferent to, fundamental norms of propriety.

An inspirationally sculpted backside, often, though not inevitably, female--sufficiently compelling to disencumber the customer of his (sometimes her) money or good sense. In an golden age of amateurism, perhaps obsolete.

Put on your old grey bustle
And get out and hustle
For tomorrow the rent is due!

In the fields of clover
Let the boys look you over--
If you can't get five, take two.

Well, I thought it stood for "no further message"--something to add to the subject line to an email, when the subject line is the email, to save the recipient the nuisance of opening the, um, message. If it does not mean this, it should.